When LC goes to Vegas and Holly Montag moves into Spencer's apartment, there's gonna be two cities' worth of drama in The Hills.

Lauren Conrad and Co. headed to Vegas for Frankie's birthday, and what would have been a fun night in Sin City turned into drama central after Brody Jenner continuously made rude comments to Stephanie Pratt.

Back in L.A., Spencer Pratt was in rare form (even for him), resorting to some passive-aggressive rage and flat-out whining when Heidi Montag's sister Holly dared crash at their place for awhile. He's so awesome.

For more on the antics of Speidi, as well as Lauren Conrad, Audrina Patridge, Brody Jenner and the like, just follow this link for our full recap of last night's episode of The Hills, "Boys Make Girls Cry."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.